The First Line Membrane Housing series includes high-performance fiberglass reinforced plastic (FRP) pressure vessels designed to house standard reverse osmosis membranes in commercial and light industrial water treatment systems. Built for durability and long service life, these housings provide excellent resistance to corrosion, chemicals, and pressure fatigue.

 

First Line membrane housings are available in 4040 and 8040 sizes, supporting single and multi-element configurations with end port or side port designs. Multiple pressure ratings—including 300 PSI and 450 PSI—allow system designers to match housing performance to specific application requirements.

 

Precision-molded internal components ensure proper membrane alignment, secure sealing, and consistent flow distribution. These housings are ideal for use in commercial RO systems, food and beverage processing, car wash and spot-free rinse systems, process water treatment, and OEM-built purification skids.

Designed for professional installers, integrators, and distributors, First Line FRP membrane housing offers a dependable, cost-effective solution for high-quality reverse osmosis filtration.